HPR 527 CID LS Build During this write up you may see pictures of two different engines and there are two going together at the same time. One is a more 1/8 and 1/4 mile setup while the other will be a street / strip / drag week kind of build. Both are going to be a bit on the aggressive side, make no mistake about it but the end goal will be to have the drag engine well past the 1000hp mark (flywheel). There are going to be a few items that will NOT be given in exact details. ...